WO2001096775A1 - Power steering apparatus - Google Patents
Power steering apparatus Download PDFInfo
- Publication number
- WO2001096775A1 WO2001096775A1 PCT/US2001/018058 US0118058W WO0196775A1 WO 2001096775 A1 WO2001096775 A1 WO 2001096775A1 US 0118058 W US0118058 W US 0118058W WO 0196775 A1 WO0196775 A1 WO 0196775A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- projection
- conduit
- power steering
- bead
- steering apparatus
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
- F16L37/12—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members
- F16L37/1225—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members using a retaining member the extremities of which, e.g. in the form of a U, engage behind a shoulder of both parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/062—Details, component parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
- F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
- F16L37/098—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of flexible hooks
- F16L37/0985—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of flexible hooks the flexible hook extending radially inwardly from an outer part and engaging a bead, recess or the like on an inner part
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S285/00—Pipe joints or couplings
- Y10S285/921—Snap-fit
Definitions
- the present invention relates to a power steering apparatus, and more specifically to a power steering apparatus having a connector assembly which connects a conduit with a housing having a chamber which holds power steering fluid.
- a known power steering apparatus includes a hydraulic motor having a housing which encloses a chamber. Power steering fluid under pressure is conducted through a conduit to the chamber during turning of steerable vehicle wheels in one direction. Power steering fluid is conducted from the chamber through the conduit during turning of steerable vehicle wheels in the opposite direction. It is desirable to be able to quickly and securely interconnect the conduit and the housing.
- a known connection between,a conduit for conducting power steering fluid and a housing includes a base fixedly connected with the housing. The base is welded to the housing to connect the base to the housing. A clip engages the base and the conduit to hold the conduit against movement relative to the housing.
- a power steering apparatus of the present invention includes a housing defining a chamber for holding power steering fluid.
- the housing has an opening defined by a projection integrally formed on the housing.
- a conduit extends into the opening and is connected with the projection on the housing.
- a connector assembly connects the conduit with the projection on the housing.
- the connector assembly includes a clip having a base with an opening and a plurality of resilient fingers extending from the base. The conduit or the projection extends through the opening in the base and engages the base. The fingers engage the other of the conduit and the projection.
- Fig. 1 is a schematic illustration of a portion of a power steering apparatus
- Fig. 2 is an enlarged fragmentary sectional view of a first embodiment of a connector assembly of the present invention connecting a conduit with a housing in the power steering apparatus of Fig. 1;
- Fig. 3 is a schematic illustration of a clip of the connector assembly taken along the line 3-3 of. Fig. 2;
- Fig. 4 is an enlarged fragmentary sectional view of a second embodiment of a connector assembly connecting a conduit with a housing in a power steering apparatus;
- Fig. 5 is an enlarged fragmentary sectional view of a third embodiment of a connector assembly connecting a conduit with a housing in a power steering apparatus;
- Fig. 6 is a schematic illustration of a clip of the connector assembly taken along the line 6-6 in Fig. 5. Description of the Invention
- a vehicle power steering apparatus 10 (Fig. 1) includes a power steering valve 12 which is connected with the outlet of a power steering pump (not shown)- by a conduit 14.
- a second conduit 16 connects the power steering valve 12 with a reservoir for the pump.
- the power steering valve 12 controls the flow of fluid to and from a power steering motor 20.
- the power steering motor 20 could have many different constructions, in the illustrated embodiment of the invention, the power steering motor includes a cylindrical housing 22 which encloses a piston 24.
- the piston 24 is disposed in a chamber 25 in the housing 22.
- the piston 24 is connected with a rack bar 26 on which rack teeth 28 are disposed. Opposite ends of the rack bar 26 are connected with steerable vehicle wheels, in a known manner, by tie rods 32 and 34.
- the power steering valve 12 includes a valve housing 38 which encloses a rotatable valve core 40. An input end portion 42 of the valve core 40 is connected with a vehicle steering wheel. Upon rotation of the vehicle steering wheel, the power steering valve 12 is operable to connect either a conduit- 50 or a conduit 52 in fluid communication with the outlet from the power steering pump through the conduit 14. The other one of the conduits 50 and 52 is connected with the reservoir through the conduit 16.
- the general construction and mode of operation of the power steering apparatus 10 is well known. It is
- the power steering apparatus 10 may have a construction and mode o ' f operation which is generally similar to the construction and mode of operation of the power steering apparatus disclosed in U.S. Patent Nos. 5,505,276 and 4,276,812.
- Connector assemblies 60 (Figs. 1 and 2) are provided to connect the conduits 50 and 52 with the housing 22.
- the connector assemblies 60 are identical and therefore, only the connector assembly connecting the conduit 50 with the housing 22 will be described in detail.
- the housing 22 has an opening 62 (Fig. 2) defined by a projection 64 integrally formed on the housing 22.
- the projection 64 is formed on the housing 22 by punching the opening 62 in the housing from the inside of the housing outward. The projection 64 is then struck from the outside, while the housing 22 is supported from the inside, causing the top edge of the projection to roll over and.-form a radially extending lip 66.
- the connector assembly 60 includes a clip 68 engaging the projection 64 and a radially extending bead 70 on the conduit 50.
- the clip 68 presses the bead 70 on the conduit 50 against an annular seal 72 to seal a joint between the projection 64 and the conduit 50.
- the seal 72 is pressed between the projection 64 and the bead 70.
- the clip 68 (Figs. 2 and 3) includes a base 78 with an opening 79 through which the conduit 50 extends.
- a plurality of resilient fingers 80 extend from the base 78.
- Fig. 3 shows six fingers 80 extending from the base 78, however, two or more fingers could extend from the base .
- An axially extending cylindrical flange 84 (Figs. 2 and 3) of the base 78 defines the opening 79.
- Each of the fingers 80 includes a radially inwardly extending portion 90. An end 91 of each of the fingers 80 extends radially inwardly and axially from the portion 90. The ends 91 of the fingers 80 -1- .
- the projection 64 is integrally formed on the housing 22 by punching the opening 62 in the housing 22.
- the projection 64 is rolled over to form the lip 66.
- the clip 68 is placed on the conduit 50 with the conduit extending through the opening 79 in the base 68.
- the radially extending bead 70 is then- formed on the conduit 50 to retain the clip 68 on the conduit 50.
- the seal 72 " is then placed on the conduit 50 in engagement with the bead 70.
- the clip 68 is then slid along the conduit 50 until the flange 84 engages the bead 70.
- the conduit 50 is moved into the opening 62 in the projection 64.
- the clip 68 and conduit 50 are moved downward, as viewed in Fig. 2, so that the ends 91 of the fingers 80 engage the lip 66 to cause the fingers to move radially outward.
- the clip 68 and the conduit 50 move further downward until the fingers 80 snap into engagement with the surface 92 on the lip 66 to prevent movement of the conduit relative to the housing 22.
- a second embodiment of a connector assembly for connecting the conduit 50 to the housing 22 of the power steering apparatus 10 is illustrated in Fig. 4.
- a connector assembly 100 is provided to connect the conduit 50 with a projection 102 on the housing 22.
- the projection 102 is formed by punching an opening ' 104 in housing 22 from inside the housing outward.
- the projection 102 is struck from the outside to cause the top edge of the projection to roll over and form a lip 106.
- the connector assembly 100 includes a clip 108 engaging the projection " 102 and a radially extending, bead 110 formed on the conduit 50.
- the clip 108 is generally similar to the clip 68 illustrated in Figs. 2 and 3.
- the clip 108 presses the bead 110 on the conduit 50 against an annular seal 112 to seal a joint between the projection 102 on the housing and the conduit 50.
- the seal 112 is pressed between the projection 102 and the bead 110.
- the clip 108 includes a base 118 with an opening 120 through which the projection 102 extends.
- a plurality of resilient fingers 122 extend from the base 118. It is contemplated that six fingers 122 extend from the base 118, however, two or more fingers 122 could extend from the base 118.
- An axially extending cylindrical flange 124 of the base 118 defines the opening 120.in the base 118.
- the flange 124 engages a radially extending surface 126 of the lip 106 to connect the
- Each of the resilient fingers 122 includes a radially inwardly extending portion 130. An end 132 of each of the fingers 122 extends radially inwardly and axially from the portion 130. The ends 132 of the fingers 122 engage the bead 110 on the conduit 50.
- the projection 102 is integrally formed on the housing 22 by punching the opening 104 in the housing. ' The clip 108 is then placed on the projection 102 with the projection extending through the opening 120. An end of the projection 102 is struck from the outside to cause the end to roll over to form the lip 106 which retains the clip 108 on the housing 22.
- the bead 110 is formed on the. conduit 50.
- the seal 112 is placed on the conduit 50 and into engagement with the bead 110.
- the conduit 50 is moved downward, as viewed in Fig. 4, until the seal 112 engages the ends 132 of the resilient fingers 122.
- the resilient fingers 122 move radially outward upon engagement with the seal 112.
- the conduit 50 moves downward into the opening 104.
- the resilient fingers snap into engagement with the bead 110 to press the seal 112 between the bead and the projection 102 and prevent movement of the conduit relative to the housing.
- a third embodiment of a connector assembly for connecting the conduit 50 to the housing 22 of the power steering apparatus' 10 is illustrated in Figs..5 and 6.
- a connector assembly 150 is provided to connect the conduit 50 with a projection 152 (Fig. 5) integrally formed on the housing 22.
- the projection 152 is formed by punching an opening 154 in the housing 22 from the inside of the housing outward.
- the connector assembly 150 includes a clip 158 engaging a radially extending bead 160 on the conduit 50 and the projection 152.
- the clip 158 presses the bead 160 on the conduit 50 against an annular seal 162 to seal a joint between the conduit 50 and the projection 152.
- the seal 162 is pressed between the bead 160 and a radially extending surfacer 164, , on the projection 152.
- the clip 158 (Figs..5 and 6) includes a base 168 with an opening 169 through which the conduit 50 extends.
- a plurality of resilient fingers 170 extend from the base 168.
- Fig. 6 shows six fingers 170 extending from the base 168, however, two or more fingers could extend from the base.
- An axially extending cylindrical flange 174 of the base 168 defines the opening 169 in the base. The flange 174 engages the conduit 50.
- Each of the fingers “ 170 (Fig. 5) includes a radially extending portion 180.
- Each of the fingers 170 has a radially extending surface 182. The surface 182 engages an axial end surface 186 of the projection 152 to retain the clip 158 in the opening 154.
- the projection 152 (Fig. 5) includes a radially extending annular surface 200 axially spaced from the surface 164.
- An axially extending cylindrical surface 202 extends perpendicular to the surface 200.
- a radially extending annular surface 204 extends perpendicular to the cylindrical surface 202 and parallel to the surface 200.
- the surfaces 200, 202, and 204 define an annular .recess 206 in the projection 152.
- the annular recess 206 receives the portions 180 on the fingers 170 to retain the conduit 50 in the opening 154.
- the projection 152 is integrally formed on the housing 22 by punching the opening 154 in the housing.
- the radially extending surface 164 and the annular recess 206 are formed on the projection 152.
- the clip 158 is placed on the conduit 50 with the conduit extending through the opening 169 in the base 168.
- the bead 160 "is formed on the conduit 50 to retain the clip 158 on the conduit.
- the seal 162 is placed on the conduit 50 in engagement with the ' bead 160.
- the conduit 50 is then moved downward, as viewed in Fig. 5, into the opening 154 until the seal 162 engages the surface 164,
- the clip 158 is then moved downward, as viewed in Fig. 5, into the opening 154 in the projection 152 until the base 168 engages the bead 160.
- the portions 180 on the fingers 170 engage the surface 186 on the projection 152 to cause the fingers 170 to move radially inward.
- the portions 180 of th-e resilient fingers 170 snap into the recess 206 in the projection 152 to connect the conduit 50 with the projection 152.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Power Steering Mechanism (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2001275209A AU2001275209A1 (en) | 2000-06-09 | 2001-06-04 | Power steering apparatus |
EP01941893A EP1299672B1 (de) | 2000-06-09 | 2001-06-04 | Servolenkungsvorrichtung |
DE60143394T DE60143394D1 (de) | 2000-06-09 | 2001-06-04 | Servolenkungsvorrichtung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/592,456 | 2000-06-09 | ||
US09/592,456 US6655491B1 (en) | 2000-06-09 | 2000-06-09 | Power steering apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001096775A1 true WO2001096775A1 (en) | 2001-12-20 |
Family
ID=24370706
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2001/018058 WO2001096775A1 (en) | 2000-06-09 | 2001-06-04 | Power steering apparatus |
Country Status (5)
Country | Link |
---|---|
US (1) | US6655491B1 (de) |
EP (1) | EP1299672B1 (de) |
AU (1) | AU2001275209A1 (de) |
DE (1) | DE60143394D1 (de) |
WO (1) | WO2001096775A1 (de) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001028148A1 (en) * | 1999-10-11 | 2001-04-19 | Nokia Networks Oy | A method for identifying bad frames |
DE10248014A1 (de) * | 2002-10-15 | 2004-05-13 | Trw Fahrwerksysteme Gmbh & Co Kg | Rohrverbindung und Verfahren zu ihrer Herstellung |
DE10322972B4 (de) * | 2003-05-21 | 2013-12-24 | Continental Automotive Gmbh | Verbindungselement |
FR2873780B1 (fr) * | 2004-07-29 | 2006-09-08 | Comap Sa | Bague de visualisation du sertissage d'un raccord pour tubes |
US20060113792A1 (en) * | 2004-11-12 | 2006-06-01 | Enhanced Applications, L.C. | Quick connector fluid coupling |
US7364204B2 (en) * | 2005-03-22 | 2008-04-29 | Trw Automotive U.S. Llc | Integrated transfer line for automotive steering system |
US7888049B2 (en) * | 2006-02-07 | 2011-02-15 | Toxcure. LLC | Rapid nasal assay kit |
US8162355B2 (en) * | 2008-03-05 | 2012-04-24 | Tk Holdings Inc. | Airbag inflator connector |
US8469404B2 (en) * | 2010-08-23 | 2013-06-25 | Lg Chem, Ltd. | Connecting assembly |
US8920956B2 (en) | 2010-08-23 | 2014-12-30 | Lg Chem, Ltd. | Battery system and manifold assembly having a manifold member and a connecting fitting |
US8758922B2 (en) | 2010-08-23 | 2014-06-24 | Lg Chem, Ltd. | Battery system and manifold assembly with two manifold members removably coupled together |
DE102012104288A1 (de) * | 2012-05-16 | 2013-11-21 | Voss Automotive Gmbh | "Steckverbindung für Fluid-Leitungen und Halteteil für eine derartige Steckverbindung" |
DE102012213089A1 (de) * | 2012-07-25 | 2014-01-30 | Hamilton Bonaduz Ag | Kopplungsausbildung eines Pipettierkanals einer Pipettiervorrichtung zur Ankopplung einer Pipettierspitze daran |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
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US4756558A (en) * | 1987-06-25 | 1988-07-12 | General Motors Corporation | Quick connect tube coupling |
US5161834A (en) * | 1990-09-27 | 1992-11-10 | Huron Products, Inc. | Fluid connector with cartridge member and release mechanism |
US5374084A (en) * | 1992-09-25 | 1994-12-20 | Parker Hannifin Corporation | Coupling for automobile air conditioning system |
US5542717A (en) * | 1994-01-03 | 1996-08-06 | Form Rite, Corporation | Quick connect coupling |
US5593188A (en) * | 1991-09-10 | 1997-01-14 | Bundy Corporation | Quick connect tubing connector and method of assembly |
US5732984A (en) * | 1980-10-29 | 1998-03-31 | Proprietary Technology, Inc. | Manually releasable quick connector |
US5988706A (en) * | 1995-09-13 | 1999-11-23 | Hollnagel; Harold E. | Tube for connect to female socket |
US6176342B1 (en) * | 1998-06-19 | 2001-01-23 | Trw Inc. | Vehicle steering apparatus |
US6267416B1 (en) * | 1996-10-07 | 2001-07-31 | Rea International, Inc. | Connector assembly for axial loads |
Family Cites Families (13)
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US3826523A (en) * | 1972-11-22 | 1974-07-30 | Parker Hannifin Corp | Quick connect tube coupling joint |
DE2810584A1 (de) * | 1978-03-11 | 1979-09-20 | Volkswagenwerk Ag | Anordnung zur elastischen verbindung von zwei rohren, insbesondere einer auspuffleitung |
US4276812A (en) | 1978-03-27 | 1981-07-07 | Trw Inc. | Power steering valve and method of making the same |
US4289335A (en) | 1980-01-11 | 1981-09-15 | Wilkerson Corporation | Modular clamping system for pressure fluid components |
US4844515A (en) * | 1986-02-14 | 1989-07-04 | General Motors Corporation | Fuel connection |
US4826486A (en) | 1986-12-10 | 1989-05-02 | Dale Medical Products, Inc. | IV connector lock and stabilizer |
DE3817472A1 (de) | 1988-05-21 | 1989-11-30 | Daimler Benz Ag | Verriegelung fuer eine fluidische steckverbindung |
US5046765A (en) | 1988-05-31 | 1991-09-10 | Usui International Industry Ltd. | Tubular fitting for connection of a branch pipe |
US6086118A (en) * | 1991-09-10 | 2000-07-11 | Bundy Corporation | Quick connect tubing connector |
JP2569074Y2 (ja) | 1992-02-26 | 1998-04-22 | 自動車機器株式会社 | ラックピニオン式舵取装置のラックブッシュ |
DE4237485B4 (de) * | 1992-11-06 | 2006-08-31 | Zf Friedrichshafen Ag | Zahnstangen-Hilfskraftlenkung, insbesondere für Kraftfahrzeuge |
US5505276A (en) | 1994-10-20 | 1996-04-09 | Trw Inc. | Poer steering system with minimum pressure maintained within the power steering motor |
US5730481A (en) | 1994-11-04 | 1998-03-24 | Itt Automotive, Inc. | Quick connector with snap-on retainer |
-
2000
- 2000-06-09 US US09/592,456 patent/US6655491B1/en not_active Expired - Fee Related
-
2001
- 2001-06-04 DE DE60143394T patent/DE60143394D1/de not_active Expired - Lifetime
- 2001-06-04 EP EP01941893A patent/EP1299672B1/de not_active Expired - Lifetime
- 2001-06-04 WO PCT/US2001/018058 patent/WO2001096775A1/en active Application Filing
- 2001-06-04 AU AU2001275209A patent/AU2001275209A1/en not_active Abandoned
Patent Citations (11)
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US5732984A (en) * | 1980-10-29 | 1998-03-31 | Proprietary Technology, Inc. | Manually releasable quick connector |
US5964484A (en) * | 1980-10-29 | 1999-10-12 | Proprietary Technology, Inc. | Swivelable quick connector assembly |
US5992903A (en) * | 1980-10-29 | 1999-11-30 | Proprietary Technology, Inc. | Swivelable quick connector assembly |
US4756558A (en) * | 1987-06-25 | 1988-07-12 | General Motors Corporation | Quick connect tube coupling |
US5161834A (en) * | 1990-09-27 | 1992-11-10 | Huron Products, Inc. | Fluid connector with cartridge member and release mechanism |
US5593188A (en) * | 1991-09-10 | 1997-01-14 | Bundy Corporation | Quick connect tubing connector and method of assembly |
US5374084A (en) * | 1992-09-25 | 1994-12-20 | Parker Hannifin Corporation | Coupling for automobile air conditioning system |
US5542717A (en) * | 1994-01-03 | 1996-08-06 | Form Rite, Corporation | Quick connect coupling |
US5988706A (en) * | 1995-09-13 | 1999-11-23 | Hollnagel; Harold E. | Tube for connect to female socket |
US6267416B1 (en) * | 1996-10-07 | 2001-07-31 | Rea International, Inc. | Connector assembly for axial loads |
US6176342B1 (en) * | 1998-06-19 | 2001-01-23 | Trw Inc. | Vehicle steering apparatus |
Non-Patent Citations (1)
Title |
---|
See also references of EP1299672A4 * |
Also Published As
Publication number | Publication date |
---|---|
EP1299672A4 (de) | 2007-06-06 |
DE60143394D1 (de) | 2010-12-16 |
EP1299672B1 (de) | 2010-11-03 |
EP1299672A1 (de) | 2003-04-09 |
US6655491B1 (en) | 2003-12-02 |
AU2001275209A1 (en) | 2001-12-24 |
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